What type of policies does Illumio focus on adapting?

Illumio focuses on flexible policies that respond to workload behavior, making the correct choice C. This approach is significant because it allows organizations to adapt their security measures dynamically based on real-time changes in their environment. By monitoring workload behavior, Illumio can enforce policies that automatically adjust to new threats or alterations in the network, thereby enhancing overall security without stifling operational efficiency.

This flexibility is essential in a landscape where workloads can frequently shift due to factors like scaling, changes in user access patterns, or evolving security threats. Adapting policies in response to these behaviors ensures that security is proactive rather than reactive, allowing for better protection of critical assets.

In contrast, standardized security measures for all users, policies that are not subject to change, and restrictive policies may not effectively address the dynamic nature of modern computing environments. Such approaches can lead to vulnerabilities or stifle necessary organizational agility, highlighting the importance of flexible, behavior-responsive policies in Illumio's paradigm.